2015.5-2016 GM 6.6L Duramax High-Flow Down Pipe

Upgrade your 2004.5-2010 Chevy Silverado or GMC Sierra 2500/3500HD with this high-performance 3-inch downpipe exhaust, designed for LLY, LBZ, and LMM 6.6L Duramax diesel engines. Engineered to replace the restrictive factory downpipe, this stainless steel exhaust component maximizes exhaust flow, improves turbo response, and boosts overall engine performance. Whether you're looking for increased power, enhanced towing capabilities, or a more efficient exhaust system, this downpipe is the perfect solution. Please note, it is not compatible with Cab & Chassis trucks.  

Fitment:

• 2004.5-2010 Chevrolet Silverado 2500HD & 3500HD
• 2004.5-2010 GMC Sierra 2500HD & 3500HD

Compatible with 6.6L Duramax LLY, LBZ, LMM diesel engines.(Not compatible with Cab & Chassis trucks.)

Specifications:

Application:  Downpipe Exhaust

Material: Stainless Steel

Surface: Mirror Polish

What does a downpipe do?

A downpipe directs exhaust gases from the turbocharger to the rest of the exhaust system. An aftermarket downpipe, like this LBZ downpipe, is typically larger in diameter and may eliminate or replace the catalytic converter, allowing for better exhaust flow. Upgrading to a high-flow downpipe reduces exhaust backpressure, letting the turbo expel gases more efficiently. This improves turbo performance, boosts power, and allows for higher boost levels. The stock downpipe often limits your vehicle’s potential, making this 3-inch downpipe a perfect upgrade for 2004.5-2010 LLY, LBZ, and LMM Duramax engines.